Improvement in stove-pipe collars and stoppers



Ua'rrnn STATES.

PATENT Grrron.

WILLIAM L. RYDMAN, OF TOLEDO, OHIO, ASSIGNOR OF ONE-HALF HIS RIGHT TOJAMES M. BROWN, OF SAME PLACE.

EMPROVEMENT IN STOVE-PIPE COLLARS AND STOPPERS.

Specification forming part of Letters Patent No. 132,738, dated November5, 1872.

To all whom it may concern:

'Be it known that I, WILLIAM L. RYDMAN, of Toledo, Lucas county, Ohio,have invented an improvement in collars around stove-pipes at the finesand stoppers for stove-pipe thimbles, of which the following isaspecification:

The first part of my invention consists in the use of plaster of Parisas a material for the collar, and in permanently fastening the collar tothe wall around the mouth of the thimble, and through which collar thestove-pipe passes into the thimble. The second part of the inventionconsists in the use of a plaster of Paris stopper, made to fit closelywith the inner rim of the collar, and, by means of a lock hereinafterdescribed, remains in position, completely closing the thimble. \Vhenthe pipe is not in use the stopper can be taken out or put in, atpleasure. Both the collar and the stopper can be and are so made that,whether used jointly or'separa-tely, they cover the thimblehole and makean ornament to the wall.

Both the collar and the stopper are made of plaster of Paris, and hencenot affected by the heat and fire of the pipe, thimble, or fiue, and,when soiled, easily cleaned.

Figure 1 is a front view of the collar alone around the thimble-hole onthe wall. Fig, 2 is a front view of both collar and stopper in positionon the Wall. Fig. 3 is a front View of the stopper alone in position onthe wall. Fig. 4 is a vertical section of the collar through the lockthat fastens the stopper and holds it in position. Fig. 5 is a verticalsection of both collar and stopper through the look when both are inposit-ion. Fig. 6 is a vertical section of the stopper alone through thelock and through the knob or handle. Fig. 7 is a side View of thestopper alone. Fig. 8 is the same as Fig. 4, but on a scale twice aslarge.

The collar can be made lighter or heavier and larger or smaller to meetthe different sizes of pipe, and the stopper to correspond with theweight'of the collar.

The outer surface of both collar and stopper may be varied to produce anornamental appearance suited to the taste.

The stopper fits into the collar and rests up on the collar, and isfastened while in position by means of two iron pins set in the loweredge of the stopper, which drop through corresponding slots in the inneredge of the collar, and the stopper then turned to the right so as tomove the pins into rabbets out on the under side of the inner edge ofcollar, as appears in the drawing, which rabbets and slots are facedwith tin, fastened firmly in the collar. The stopper is handled by aknob, letter (3, Figs. 2, 3, 5, 6, and 7, of porcelain or othermaterial, fastened by a screw reaching through the knob and into a smallblock of wood, which is located in the stopper and kept there by theplaster of Paris which surrounds it, as shown in Figs. 5 and 6, letterE.

The collar is fastened to the wall, after it has been made and becomedry, by plaster of Paris, which soon dries and becomes hard,

pose set forth.

WILLIAM L. RYDMAN.

Attest: I

JAMES M. HUNTON, A. D. BALDWIN.

